Door check and closer



June 5, 192s. 1,612,411

F. H. HAMILTON D OOR CHECK AND CLOSER Filed Nv. 19, 1925 f? j (1 *f y i:4 'gg /45 I3\ l if ,mvlalilwm .ml'nlwl' ml 50 l ya es 33 7 Patented June5, 1928.

. unirse TES FREDERICK H. HAMILTON, OFNEWARK,

NEW JERSEY, As'sIGNoR 0E ONE-HALE To YROBERT i'AEGER, 'oE'LrNpEm rNEWJERSEY, AND'oNE-HALE To CHARLES n. RY-

EERG, oEERooxLYN, NEW YORK.

EooR CHECK AN-E eEosER.

Application sieanovember 19, 192e. serial No. 149,392.

This invention .relates to .closing devices as applied to commonswinging doors hinged to their frames 1n a vertical plane and 4has asone of its objects the provision of a noiseless, automatic means toclose a door lin a quiet manner.

It is a further feature to provide an operating means of unusuallysimple character, easy to attach and of moderate expense to manufacture.

Door closing devices of the usual types are objectionable in appearance,costly to construct and, due to the pneumatic or hydraulicelementsemployed, require adjustmentand eventually wear to such an' extent as tobecome useless.

It is therefore the principal purpose of the present invention toprovide a device in which the disadvantages of ordinaryehecks andclosers are avoided.

These features of the invention are at tained by the novel constructionand combination of parts hereinafter described and illustrated in theaccompanying drawing, forming an important componentv of thisdisclosure, and in which 1'- Figure 1 is a top plan'view of the deviceshowing the door in a closed position.

Figure 2 is a similar view of the same showing the door partiallyopened.

Figure 3 is aside elevational view thereof, drawn to an enlarged scale.p

Figure 4 is a fragmentary artial transverse sectional view illustratingthe arm pivots. -v v Referring in detail to the drawing, the numeral 10generally designates' a door frame to which is attached by hinges 11 toone of the longer edges of a door 12.

Secured to the lintel of the door frame, at a point near the upper endof the door 12 opposite the hinged edge, is a rightl angle bracket 13carrying a stud 14 provided with a body 15 around which is coiled atorsion spring 16, its upper end 17 being set in the bracket 13 and thelower end 18 being set in the end of a thin flatI arm 19 rotatablymounted on the stud 15 the action of the spring being to press the armin the direction of the wall containing the door opening. The oppositeend of the arm 19 is pivoted on a stud 20, surrounded by aspacer 21 be`tween a washer@ and ,the heed 23 0f the stud the opposite end of whichis engaged by a nut 24 resting on the washer.

Mounted on the spacer 21 is a helical torsional spring 25, one end 26'of which engages the arm 19, and the other end 28 engages a second arm27, the last named arm being rotatable on the stud 20y intermediate thespacer 21 and the head of the stud, the spring operating to press theydoor into a closed position.

The outer end of the arm 27 is rotatably securedon the reduced portionof an internally threaded stud 29, intermediate its shoulder 30 and awasher 31 and is held in po si tion by a screw 32, thestud being rivetedat 33 to a right angled bracket 34 fixed on the door 12 in register withthe bracket 13.

Coiled about the stud 29 is a torsion sprin 35, one end 36of which isset in the arm 2 and the other end 37 in the bracket 34, thissp'ringalso exerting its tension in an effort Fixed intermediate thewasher 22l and thel nut 24 is one end of a tension spring-44, the otherend being secured on a post 45 attached on the bar 39, the tension ofthe spring being exerted to press the wheel firmly against the bar,which action becomes intensified as the door assumes a nearly closedposition.

Thus in operation, when the door is closed as in Figure 1, the spring 44is expanded. Upon opening ythe door, the arms 19 and 27 spread on thepivot 23 against the action of the torsion spring 25. At the same timethe spring 44 contracts causing the wheel 43 to .ride on'the arm 19under constantly lessen-y ing pressure.

Upon closing the door, the spring 44 expands and when the wheel 43engages the arm 19 to ridethereon the speed of the door is checked.

It is to be noted that the main elements are made from fiat stoekandthat the cost of constructionis thereby rendered very low.

Although the foregoing is descriptive of the preferred embodiment of theinvention, it will be apparent that niinorchanges may be made in itsconstruction, without the exercise of invention or conflictingl with thescope of the claim hereto appended.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

A door closing device comprising a pair of pivoted arms Vattachedrespectively to a door and the lintel thereof, a spring adapted to swingsaid arms inwardly on their pivot, a bar pivoted to the arm attached tothe door,

a grooved wheel rotatable on the free end of said bar tol engage theother arm, a tension spring extending from the arm pivot to said bar,and a stop carried 1n the arin adgacent the bar pivot, said stoplimiting lthe swing of said bar in both directions.4

Signed at New York in the county of New York and State of New York this14th day of October, A. D. 1926. f

FREDERICK II. HAMILTON.

